<template>
  <div class="login-container">
    <!-- 导航栏 -->

    <van-nav-bar class="page-nav-bar" title="登录" >
      <van-icon slot="left" name="cross" @click="$router.back()"></van-icon>
    </van-nav-bar>
    <!-- /导航栏 -->

    <!-- 登录表单 -->
    <van-form @submit="onSubmit" ref="loginForm">
      <van-field
        v-model="user.mobile"
        :rules="userFormRules.mobile"
        name="mobile"
        placeholder="请输入手机号"
      >
        <i slot="left-icon" class="iconfont icon-shouji"></i>
      </van-field>
      <van-field
        v-model="user.code"
        :rules="userFormRules.code"
        name="code"
        placeholder="验证码"
      >
        <i slot="left-icon" class="iconfont icon-yanzhengma"></i>

        <template #button>
          <van-count-down
            v-if="isCountDownShow"
            :time="1000 * 60"
            format="ss s"
            @finish="isCountDownShow = false"
          />
          <van-button
            v-else
            class="send-sms-btn"
            round size="small"
            type="default"
            @click="onSendSms"
            native-type="button">发送验证码</van-button>
        </template>
      </van-field>
      <div class="login-btn-wrap">
        <van-button class="login-btn"
                    block type="info"
                    native-type="button"
                    @click="onSubmit"
        >
          登录
        </van-button>
      </div>
    </van-form>
    <!-- /登录表单 -->
  </div>
</template>
<script>
import { login ,getSmsCode} from '@/api/user'

export default {
  name: 'LoginIndex',
  components: {},
  props: {},
  data () {
    return {
      //登录表单
      user: {
        mobile: '13911111111',
        code: '246810'
      },
      //登录表单的验证规则
      userFormRules: {
        mobile: [{
          required: true,
          message: '手机号不能为空'
        }, {
          pattern: /^1[3|5|7|8]\d{9}$/,
          message: '手机号格式错误'
        }],
        code: [{
          required: true,
          message: '验证码不能为空'
        }, {
          pattern: /^\d{6}$/,
          message: '验证码格式错误'
        }]
      },
      //控制倒计时
      isCountDownShow:false
    }
  },
  computed: {},
  watch: {},
  created () {},
  mounted () {},
  methods: {

    //发送验证码
   async onSendSms(){


     //校验通过后,开启倒计时，调接口
      this.isCountDownShow = true
     try {
       await getSmsCode(this.user.mobile)
       this.$toast('发送成功')
     }catch (err){
// 发送失败，关闭倒计时
       this.isCountDownShow = false
       if (err.response.status === 429) {
         this.$toast('发送太频繁了，请稍后重试')
       } else {
         this.$toast('发送失败，请稍后重试')
       }
     }


    },

    //  提交登录表单
    async onSubmit () {

      // TODO: 2. 表单验证

      // 3. 提交表单请求登录
      this.$toast.loading({
        message: '登录中...',
        forbidClick: true, // 禁用背景点击
        duration: 0 // 持续时间，默认 2000，0 表示持续展示不关闭
      })

      try {
        const { data } = await login(this.user)
        this.$toast.success('登录成功')
        this.$router.push('/my')
        this.$store.commit('setUser',data.data)

      }
      catch (err) {
        if (err.response.status === 400) {
          this.$toast.fail('登录失败，请稍后重试')

        } else {
          this.$toast.fail('手机号或验证码错误')

        }
      }

      // 4. 根据请求响应结果处理后续操作
    }



  }
}
</script>

<style scoped lang="less">
.login-container {
  .iconfont {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 152px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}
</style>
